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Echinocereus coccineus Engelm. in Wisliz.

Family: CACTACEAE

Publication: Mem. Tour N. Mexico [Wislizenus] 93, adnot. 1848 [Apr 1848]

Description

Usually clumping, Echinocereus coccineus forms large colonies of as many as 50-100 (500)-thick stems on each plant at maturity. Stems can vary from almost spineless to wildly and densely spined. Two subspecies are recognized, the nominate and Echinocereus coccineus subs. paucispinus (Engelm.) W.Blum. Mich.Lange & Rutow.

Stems: Semi-erect, dark green, from 8 cm to 40 cm tall, 5 cm in diameter.

Ribs: 8 to 11.

Spines: Mostly undifferentiated between radials and centrals. Spines are yellowish and turn grey after a number of years.

Central spines: 0 to 4 , up to 7.5 cm long.

Radial spines:* 5-20.

Flowers: Hummingbird-attracting, colour ranges from near orange, scarlet , and pink to deep crimson shades, with rounded petal tips length and width averaged 80 mm and 30 mm, respectively, stigma with 7 or 8 lobes.

Blooming season: Peak flowering comes from late April to June on mature clumps. Fruiting 2-3 months after flowering.

Origin and Habitat

Southwestern USA (Arizona, Texas, New Mexico, Colorado, Utah, Nevada, California) and Mexico (Baja California, Sonora, Coahuila, Chihuahua). Echinocereus coccineus has a very large extent of occurrence, is abundant and common, and there are no major threats.

TL: New Mexico, Wolf Creek, Wislizenus,24 June 1846 (MO).

Altitude range: (150-)1500-2800(-3000) metres above sea level.

Habitat: Chihuahuan Desert, desert scrub (chaparral), desert grasslands, bajadas, Great Plains grasslands, pinyon-juniper and oak woodlands, mountain forest, forest clearings. It grows on rocky outcroppings and cliffs, on loamy, humus, mineral soil and and also in igneous, metamorphic, and limestone substrates, with humus, often in the partial-shade of oak and pine-oak woodlands and mixed conifer forest. It is pollinated by hummingbirds and halictid bees, and it has both hermaphroditic and dimorphic populations.

Cultivation and Propagation

Echinocereus coccineus is fairly easy to grow. It makes great potted specimens.

Soil: Use a mineral well permeable soil with little organic matter (peat, humus). It grows in limestone areas of Texas (Big Bend area) and adjacent areas of Mexico, so will probably benefit from extra calcium in its soil.

Growth rate: It grows well, though slowly, but it possible to increase the speed of growth to some extent by providing adequate amount of water, warmth, and a liquid fertilizer diluted half strength during the active growing season, but it’s susceptible to rotting if too wet. Most plants will offset readily, and clumps can be produced in a few years.

Soil: It needs a very porous, slightly acidic potting medium (add pumice, vulcanite, and perlite). Outdoors it does well on poor, rocky soils.

Exposure: It likes a sunny position also blasting sun in summer. If grown indoor provide 4 to 6 hours, or more, direct morning or afternoon sun.

Watering: It is sensitive to overwatering (rot prone) needs a very good drainage to avoid rotting, but requires more moisture than true desert cacti to grow and produce flowers.

Hardiness: It its natural environment it is very cold resistant from -10° to -25° C (depending on clones) or less for short periods of time. It can be grown outdoors in Mediterranean warm-temperate climates, But for safe cultivations needs anyway to kept above 5 °C and dry in winter. But it can tolerate temperatures down to -5° C (or even less) for very short periods if very dry and ventilated. During winter month, put them in a cool luminous place and encourage them to enter winter dormancy by withholding water and fertiliser over the winter as they will etiolate, or become thin, due to lower levels of light.

Maintenance: Repot every two years. Needs lots and lots of space to grow, use large shallow container or bowl filled with very porous compost. It like pots with generous drain holes.

Pest & diseases: They are susceptible to fungal diseases if overwatered, but are not nearly as sensitive as many other cacti, especially in warm weather. If kept damp through cold periods, they will invariably suffer.

Garden uses: It is a fine plant for a rock garden or container, contrasts well with agaves, yuccas, and low-growing flowering plants.

Grafting stock: The taller fast-growing forms of Echinocereus coccineus and of Echinocereus triglochidiatus are highly recommended stocks for grafting cold hardy type cactus species. These can be used as cold hardy type stocks for almost all types of cactus, while still retaining the original natural grown look to the scion.

Edible uses: The fruit can be consumed fresh or preserved.

Propagation: Cutting as it branches freely from the base; Also can be grown from seeds. The seeds may be germinated and grown in containers. Their main requirements consist of high humidity levels, free-draining soil mix, and enough water, light, and nutrition.

Notes

Female and male flowers: Echinocereus coccineus is a cactus with both hermaphroditic (bisexual) and dioecious (male and female) forms of flowers in different plants. Male flowesr show pollen-filled anthers surrounding the base of the stigma lobes. Functional female flowers from different plants show reduced filaments and empty anther sacs held below the stigma lobes.

The flowers appear specialized in hummingbirds, but are also pollinated by bees. They are huge and highly rewarding, and daily nectar production averages 30 mg sugar per flower. This set of traits represents a syndrome rare among hummingbird flowers, in which the flower fits the head rather than just the bill, and birds are well rewarded for a risky or inconvenient visit.

Bibliography

Major references and further lectures

  1. David Hunt, Nigel Taylor “The New Cactus Lexicon” DH Books, 2006

  2. Edward F. Anderson “The Cactus Family” Timber Press, 2001

  3. Terry, M., Heil, K., Gómez-Hinostrosa, C. & Corral-Díaz, R. 2013. Echinocereus coccineus. The IUCN Red List of Threatened Species. Version 2014.3. <www.iucnredlist.org>. Downloaded on 29 April 2015.

  4. Stuart Max Walters “The European Garden Flora: Dicotyledons (Part I)” Cambridge University Press, 1989

From llifle page Cereus roemeri

Description

Echinocereus roemeri is a densely caespitose cactus specie, often growing in large colonies up to 1 m in diameter, containing sometimes 200 or more simple stems. Echinocereus roemeri is a cactus with both hermaphroditic (bisexual) and dioecious (male and female) forms of flowers on different plants. Male flower shows pollen-filled anthers surrounding the base of the stigma lobes, while functional female flowers from different plants show reduced filaments and empty anther sacs held below the stigma lobes.

Stems:Dark green, ovoid to cylindrical, 20-40 cm tall, 3 to 5 in diameter .

Ribs: 8 to 11 somewhat tuberculed.

Spines: Acicular, mostly undifferentiated between radials and centrals;

Radial spines: (5-)8-12(-20) round in cross-section, 1-2 cm long, usually whitish.

Central spines: 0 to 4, longer and stouter somewhat angular in cross-section, the main one often flattened, up to 7.5 cm long; usually yellowish or whitish, but sometimes reddish or blackish.

Flowers: Borne below the stems apex, oftem unisexual (plants dioecious) broad Infundibuliform, orange-red, crimson or (rarely) pinkish, 3-10 cm long, up to 8 cm in diameter, perianth-segment obtuse or retuse, stigma with 7 or 8 lobes, usually greenish, areoles on flower, and ovary felted, bearing short white bristly spines.

Blooming season: Spring. The blooming period of large plants can extend over a period of weeks, with each bloom remaining open for several days and nights. The flowers appear specialized for hummingbirds, but are also pollinated by bees. They are huge and highly rewarding, and daily nectar production averaged 30 mg sugar/flower. This set of traits represents a syndrome rare among hummingbird flowers, in which the flower fits the head rather than just the bill, and birds are well rewarded for a risky or inconvenient visit.

Fruits: Globose, becoming red, with spines falling away.

Origin and Habitat

Southwestern USA (New Mexico, Arizona, Utah, west Texas and Colorado), Mexico (Sonora, Coahuila, Chihuahua)

Typical Locality: Texas, granitic region of the Llano. Lindheimer, 1847 (MO).

Cultivation and Propagation

Echinocereus roemeri is fairly easy to grow. It makes great potted specimens.

Soil: Use a mineral well permeable soil with little organic matter (peat, humus). It grows in limestone areas of Texas (Big Bend area) and adjacent areas of Mexico, so will probably benefit from extra calcium in its soil.

Growth rate: It grows well, though slowly, but it possible to increase the speed of growth to some extent by providing adequate amount of water, warmth, and a liquid fertilizer diluted half strength during the active growing season, but it’s susceptible to rotting if too wet. Most plants will offset readily, and clumps can be produced in a few years.

Soil: It needs a very porous, slightly acidic potting medium (add pumice, vulcanite, and perlite). Outdoors it does well on poor, rocky soils.

Exposure: It likes a sunny position also blasting sun in summer. If grown indoor provide 4 to 6 hours, or more, direct morning or afternoon sun.

Watering: It is sensitive to overwatering (rot prone) needs a very good drainage to avoid rotting, but requires more moisture than true desert cacti to grow and produce flowers.

Hardiness: It its natural environment it is very cold resistant from -10° to -25° C (depending on clones) or less for short periods of time. It can be grown outdoors in Mediterranean warm-temperate climates, But for safe cultivations needs anyway to kept above 5 °C and dry in winter. But it can tolerate temperatures down to -5° C (or even less) for very short periods if very dry and ventilated. During winter month, put them in a cool luminous place and encourage them to enter winter dormancy by withholding water and fertiliser over the winter as they will etiolate, or become thin, due to lower levels of light.

Maintenance: Repot every two years. Needs lots and lots of space to grow, use large shallow container or bowl filled with very porous compost. It like pots with generous drain holes.

Pest & diseases: They are susceptible to fungal diseases if overwatered, but are not nearly as sensitive as many other cacti, especially in warm weather. If kept damp through cold periods, they will invariably suffer.

Garden uses: It is a fine plant for a rock garden or container, contrasts well with agaves, yuccas, and low-growing flowering plants.

Grafting stock: The taller fast-growing forms o Echinocactus coccineus and of Echinocactus triglochidiatus are highly recommended stocks for grafting cold hardy type cactus species. These can be used as cold hardy type stocks for almost all types of cactus, while still retaining the original natural grown look to the scion.

Food: The Native Americans of New Mexico ate the fruit fresh or preserved.

Traditional Medicine: This species is used medicinally as a heart stimulant.

Propagation: Cutting as it branches freely from the base; Also can be grown from seeds. The seeds may be germinated and grown in containers. Their main requirements consist of high humidity levels, free-draining soil mix, and enough water, light, and nutrition.

Notes

Nowadays E. roemeri is regarded by botanists as Echinocereus coccineus (ssp. coccineus). This taxon is closely related to and easily confused with Echinocereus triglochidiatus, and there are many cases of hybridization between the species.

Source: Cereus roemeri, LLIFLE - Encyclopedia of living forms, CC-BY-SA, retrieved 2026-10-25.

From llifle page Echinocereus arizonicus subs. matudae

Description

Echinocereus matudae (syn: Echinocereus arizonicus subs. matudae) is a large tufted Echinocereus branching from the base, possibly one of the the largest among the species of this genus. It is a local or morphological form of Echinocereus coccineus (Mexican Claret Cup), distinguished from the type by its somewhat larger stem, up to 50 cm tall, and 12 cm in diameter. In addition to its large size, this plant is characterized by a reduced number of ribs with fewer short, thick spines. Echinocereus matudae, is generally included within (as a synonym of) Echinocereus coccineus, suggesting that there is not really a fundamental difference between the two, but it still has a value for a collector because they identify plants with particular characters.

Derivation of speciefic name: This member of the Cactaceae family was given this name in honour of its collector Prof. Eizi Matuda. Matuda’s echinocereus.

Root: fibrous branched.

Stems: Cylindrical, erect, very thick, green to dark green 10-30(-50) cm tall, 9-12 cm in diameter.

Ribs: 6-8, broad and obtuse, 2-3 cm high, (1.5)3-4(-5) cm wide at base, sinuatae, slightly tuberculate, perpendicular, diverging.

Areoles: Round to oval 7-10 mm long, 5-7 mm wide, 15-25 mm apart.

Radial spines: 7-11, needle-like, stiff, straight, yellow to light brown, becoming grey, 5-30 mm long,

Central spines: 0-4, spreading above the radials or crosswise, brownish yellow to black 20-40 mm long.

Flowers: Purple-red. Buds red, round, naked or slightly spined. Flower short tubular 50-70 long, to 50

cm in diameter, bright to dark red, throat yellowish. Flower tube 20-30 mm long, 10-25 mm in diameter, reddish. Pericarpel 15-20 mm long, 10-15 mm in diameter, green. Spines 5-10 up to 10 mm long yellowish. Wool up to 2 long. Nectar chamber 7-9, 1.5-2.5 in diameter. Filaments 30-50 mm long, white, purple at apex. Anthers pink-yellow. Style greenish-white, up to 50 mm long, and 1-1.5 in diameter. Stigma lobes 7-9, light green 4-7 mm long.

Fruit: Spherical to ovoidal, green, tinged red-maroon when ripe, about 25-35 mm long, and 15-25 mm in diameter. Ripening 3-4 month after anthesis. Pulp white.

Chromosome number: Diploid 2n = 22.

Seeds: 1.2-1.5 mm long, 1.0 to 1.2 thick, black. Testa conspicuously warty.

Origin and Habitat

Mexico, Chihuahua. (Type locality:Mexico: Chihuahua: Near Casas Grandes, 2000 m.)

Altitude range: 2200 - 2500 m above sea level.

Habitat and ecology: The plant grows in a mountainous area, on clayey soil among volcanic rocks and forming part of a vegetation of pines and oaks with a predominance of Pinus chihuahuensis, Pinus duranguensis, Ericaceae and some species of the genera and Yucca, Nolina and Dasylirium.

Cultivation and Propagation

Echinocereus matudae is fairly easy to grow. It makes great potted specimens.

Soil: Use a mineral well permeable soil with little organic matter (peat, humus). It grows in limestone areas of Texas (Big Bend area) and adjacent areas of Mexico, so will probably benefit from extra calcium in its soil.

Growth rate: It grows well, though slowly, but it possible to increase the speed of growth to some extent by providing adequate amount of water, warmth, and a liquid fertilizer diluted half strength during the active growing season, but it’s susceptible to rotting if too wet. Most plants will offset readily, and clumps can be produced in a few years.

Soil: It needs a very porous, slightly acidic potting medium (add pumice, vulcanite, and perlite). Outdoors it does well on poor, rocky soils.

Exposure: It likes a sunny position also blasting sun in summer. If grown indoor provide 4 to 6 hours, or more, direct morning or afternoon sun.

Watering: It is sensitive to overwatering (rot prone) needs a very good drainage to avoid rotting, but requires more moisture than true desert cacti to grow and produce flowers.

Hardiness: It its natural environment it is very cold resistant from -10° to -25° C (depending on clones) or less for short periods of time. It can be grown outdoors in Mediterranean warm-temperate climates, But for safe cultivations needs anyway to kept above 5 °C and dry in winter. But it can tolerate temperatures down to -5° C (or even less) for very short periods if very dry and ventilated. During winter month, put them in a cool luminous place and encourage them to enter winter dormancy by withholding water and fertiliser over the winter as they will etiolate, or become thin, due to lower levels of light.

Maintenance: Repot every two years. Needs lots and lots of space to grow, use large shallow container or bowl filled with very porous compost. It like pots with generous drain holes.

Pest & diseases: They are susceptible to fungal diseases if overwatered, but are not nearly as sensitive as many other cacti, especially in warm weather. If kept damp through cold periods, they will invariably suffer.

Garden uses: It is a fine plant for a rock garden or container, contrasts well with agaves, yuccas, and low-growing flowering plants.

Edible uses: The fruit can be consumed fresh or preserved.

Propagation: Cutting as it branches freely from the base; Also can be grown from seeds. The seeds may be germinated and grown in containers. Their main requirements consist of high humidity levels, free-draining soil mix, and enough water, light, and nutrition.

Bibliography

Major references and further lectures

  1. Helia Bravo H. “Una especie nueva del genero Echinocereus, Echinocereus matudae sp. nov.” Anales del Instituto de Biología, Instituto de Biología [Universidad Nacional Autónoma de México], XXXI, page 119,1960

  2. “Echinocereus arizonicus J. N. Rose ex C. D. Orcutt subsp. matudae (H. Bravo-Hollis) J. Rutow” In: Lange & Rutow. - Der Echinocereenfreund 7 (2): 54 (1994)

Major references and further lectures

  1. “Echinocereus arizonicus subsp. matudae” retrieved 22 March 2016 from <http://www.echinocereus.com/Echinocereus/arizonicus/matudae/matudae.html\>

Source: Echinocereus arizonicus subs. matudae, LLIFLE - Encyclopedia of living forms, CC-BY-SA, retrieved 2026-10-25.

From llifle page Echinocereus rosei

Description

Echinocereus coccineus var. rosei is a simple or clustered species and forms large compact clumps with sometimes as many as 40 stems. This plant is separated from its closely relatives by the presence of quite long, white wool in the areoles of the ovary and fruit. The flowers are very showy 4 to 6 cm long, scarlet, but also orange coloured or pink.

Stems: Globose to cylindrical, 10 to 20 cm. high, and 5 to 8 cm. thick

Ribs: (5-)8-11(-14) obtuse to slightly acute.

Areoles: Rather closely set

Spines: Grey to pinkish or reddish passing to greyish. Radials 3 to 12, spreading; centrals 4 to 6 cm Long.

Flowers: 4 to 6 cm long, scarlet (but sometime orange coloured or also pink) spines on ovary and flower tube brownish or yellowish, intermixed with short hairs.

Fruit: Spiny.

Origin and Habitat

Northern Mexico, New Mexico, Texas.

Habitat: In mountains and dry hills and sometimes on the mesas.

Cultivation and Propagation

Echinocereus coccineus var. rosei is fairly easy to grow. It makes great potted specimens.

Soil: Use a mineral well permeable soil with little organic matter (peat, humus). It grows in limestone areas of Texas (Big Bend area) and adjacent areas of Mexico, so will probably benefit from extra calcium in its soil.

Growth rate: It grows well, though slowly, but it possible to increase the speed of growth to some extent by providing adequate amount of water, warmth, and a liquid fertilizer diluted half strength during the active growing season, but it’s susceptible to rotting if too wet. Most plants will offset readily, and clumps can be produced in a few years.

Soil: It needs a very porous, slightly acidic potting medium (add pumice, vulcanite, and perlite). Outdoors it does well on poor, rocky soils.

Exposure: It likes a sunny position also blasting sun in summer. If grown indoor provide 4 to 6 hours, or more, direct morning or afternoon sun.

Watering: It is sensitive to overwatering (rot prone) needs a very good drainage to avoid rotting, but requires more moisture than true desert cacti to grow and produce flowers.

Hardiness: It its natural environment it is very cold resistant from -10° to -25° C (depending on clones) or less for short periods of time. It can be grown outdoors in Mediterranean warm-temperate climates, But for safe cultivations needs anyway to kept above 5 °C and dry in winter. But it can tolerate temperatures down to -5° C (or even less) for very short periods if very dry and ventilated. During winter month, put them in a cool luminous place and encourage them to enter winter dormancy by withholding water and fertiliser over the winter as they will etiolate, or become thin, due to lower levels of light.

Maintenance: Repot every two years. Needs lots and lots of space to grow, use large shallow container or bowl filled with very porous compost. It like pots with generous drain holes.

Pest & diseases: They are susceptible to fungal diseases if overwatered, but are not nearly as sensitive as many other cacti, especially in warm weather. If kept damp through cold periods, they will invariably suffer.

Garden uses: It is a fine plant for a rock garden or container, contrasts well with agaves, yuccas, and low-growing flowering plants.

Grafting stock: The taller fast-growing forms of Echinocereus coccineus and of Echinocereus triglochidiatus are highly recommended stocks for grafting cold hardy type cactus species. These can be used as cold hardy type stocks for almost all types of cactus, while still retaining the original natural grown look to the scion.

Edible uses: The fruit can be consumed fresh or preserved.

Propagation: Cutting as it branches freely from the base; Also can be grown from seeds. The seeds may be germinated and grown in containers. Their main requirements consist of high humidity levels, free-draining soil mix, and enough water, light, and nutrition.

Source: Echinocereus rosei, LLIFLE - Encyclopedia of living forms, CC-BY-SA, retrieved 2026-10-25.

From llifle page Echinocereus triglochidiatus var. gurneyi

Description

Echinocereus coccineus var. gurneyi is a nice cactus species characterized by short spines and orange-red flowers. It is a variety of doubtful validity, generally included in Echinocereus coccineus. However, some authors, consider this plant the result of introgression of Echinocereus dasyacanthus into Echinocereus coccineus (a naturally occurring hybrid) as suggested by relatively subtle features, such as orange instead of red flowers, higher rib number, and shorter spines and is often treated under ICBN rules as a synonym of the nothotaxon Echinocereus x roetteri.

Habit: It is a low growing cactus species, usually clumping often in colonies of 10 stems or more.

Stem: 20-35 cm long, 5-10 cm in diameter, darker green in color compared to the other varieties.

Ribs: (8-)10 -11(-12), not markedly tuberculate.

Spines: Mostly undifferentiated between radials and centrals.

Central spines: 1 (occasionally 2), up to 7,5 cm long and 0,5 mm in diameter.

Radial spines: 5-12.

Flowers: Paler than the type, orange-red or salmon pink, up to 8 cm in diameter.

Blooming season: April-May, open day and night. Fruiting 2-3 months after flowering.

Origin and Habitat

Southwestern USA (New Mexico, Trans-Pecos Texas), Mexico (Chihuahua)

Altitude: 1200-1500 metres above sea level.

Habitat: It grows on rocky hillsides, on exposed slabs and fractured limestone rock in pine-oak-juniper woodlands and often associated with Dasylirion leiophyllum, Escobaria guadalupensis, Echinocercus viridiflorus var. cylindricus, and Agave neomexicana.

Cultivation and Propagation

Echinocereus coccineus var. gurneyi is fairly easy to grow. It makes great potted specimens.

Soil: Use a mineral well permeable soil with little organic matter (peat, humus). It grows in limestone areas of Texas (Big Bend area) and adjacent areas of Mexico, so will probably benefit from extra calcium in its soil.

Growth rate: It grows well, though slowly, but it possible to increase the speed of growth to some extent by providing adequate amount of water, warmth, and a liquid fertilizer diluted half strength during the active growing season, but it’s susceptible to rotting if too wet. Most plants will offset readily, and clumps can be produced in a few years.

Soil: It needs a very porous, slightly acidic potting medium (add pumice, vulcanite, and perlite). Outdoors it does well on poor, rocky soils.

Exposure: It likes a sunny position also blasting sun in summer. If grown indoor provide 4 to 6 hours, or more, direct morning or afternoon sun.

Watering: It is sensitive to overwatering (rot prone) needs a very good drainage to avoid rotting, but requires more moisture than true desert cacti to grow and produce flowers.

Hardiness: It its natural environment it is very cold resistant from -10° to -25° C (depending on clones) or less for short periods of time. It can be grown outdoors in Mediterranean warm-temperate climates, But for safe cultivations needs anyway to kept above 5 °C and dry in winter. But it can tolerate temperatures down to -5° C (or even less) for very short periods if very dry and ventilated. During winter month, put them in a cool luminous place and encourage them to enter winter dormancy by withholding water and fertiliser over the winter as they will etiolate, or become thin, due to lower levels of light.

Maintenance: Repot every two years. Needs lots and lots of space to grow, use large shallow container or bowl filled with very porous compost. It like pots with generous drain holes.

Pest & diseases: They are susceptible to fungal diseases if overwatered, but are not nearly as sensitive as many other cacti, especially in warm weather. If kept damp through cold periods, they will invariably suffer.

Garden uses: It is a fine plant for a rock garden or container, contrasts well with agaves, yuccas, and low-growing flowering plants.

Grafting stock: The taller fast-growing forms of Echinocereus coccineus and of Echinocereus triglochidiatus are highly recommended stocks for grafting cold hardy type cactus species. These can be used as cold hardy type stocks for almost all types of cactus, while still retaining the original natural grown look to the scion.

Edible uses: The fruit can be consumed fresh or preserved.

Propagation: Seeds, also can be grown from cutting as it branches from the base. The seeds may be germinated and grown in containers. Their main requirements consist of high humidity levels, free-draining soil mix, and enough water, light, and nutrition.

Bibliography

Major references and further lectures

    1. Edward Anderson “The Cactus family” Timber Press, Incorporated, 2001
    1. James Cullen, Sabina G. Knees, H. Suzanne Cubey “The European Garden Flora Flowering Plants: A Manual for the Identification of Plants Cultivated in Europe, Both Out-of-Doors and Under Glass” Cambridge University Press, 11/Aug/2011
  1. David R Hunt; Nigel P Taylor; Graham Charles; International Cactaceae Systematics Group. “The New Cactus Lexicon” dh books, 2006

  2. Del Weniger “Cacti of the Southwest: Texas, New Mexico, Oklahoma, Arkansas, and Louisiana” University of Texas Press, 1969

  3. “Rare Plants of Texas: A Field Guide” Texas A&M University Press, 2007

  4. “Contributions from Texas Research Foundation, Volume 6” Texas Research Foundation, 1970

  5. Albert Michael Powell, James F. Weedin “Cacti of the Trans-Pecos and Adjacent Areas” Texas Tech University Press, 2004

Source: Echinocereus triglochidiatus var. gurneyi, LLIFLE - Encyclopedia of living forms, CC-BY-SA, retrieved 2026-10-25.

Cultivars and forms (4)